Try taking out your memory cards make sure they are clean and reinsert them one at a time. This happened to me a while back and it was a memory card reading problem the D7000 lock on trying to read the card but will not shut down. Just take them out and put them back in one at a time. Good Luck

msmoto on "D7000 Off Switch Does NOTHING!"http://nikonrumors.com/forum/topic.php?id=5801#post-91376
Mon, 07 May 2012 06:06:04 +0000msmoto91376@http://nikonrumors.com/forum/

adamz said:
it's not - go to Nikon Service, if Your camera is under warranty they gonna fix it for free

Absolutely, this can really begin to create problems with changing out memory cards, lenses, etc. Having electrical current across the contacts is an unpredictable scenario when doing these functions. It can set up static charges, surge currents, improper voltages across contacts, a variety of potential problems. So, get it checked out as Adam has suggested.

adamz on "D7000 Off Switch Does NOTHING!"http://nikonrumors.com/forum/topic.php?id=5801#post-91363
Mon, 07 May 2012 03:47:19 +0000adamz91363@http://nikonrumors.com/forum/

it's not - go to Nikon Service, if Your camera is under warranty they gonna fix it for free

JK1231 on "D7000 Off Switch Does NOTHING!"http://nikonrumors.com/forum/topic.php?id=5801#post-91359
Mon, 07 May 2012 02:26:55 +0000JK123191359@http://nikonrumors.com/forum/

Okay, I know the on/off switch on this camera isn't supposed to do much... However, mine appears to do NOTHING. There is absolutely NO difference between 'off' and 'on' positions. I can take pictures, change settings, do ANYTHING with the camera 'off'!!

Is this normal, or do I have a problem? I first noticed it back in December when the camera was new, but haven't had the time to really play with it and prove that there was no difference until yesterday.

Also, the GPS unit is appears to be always on whenever plugged in, despite GPS Auto-Meter Off being enabled.

A battery charge with the GPS plugged in lasts a little longer than a day with lite no-flash shooting, and about a week with no GPS or shooting whatsoever.

The momentary contact position all the way to the right lights up the LCDs -- which appears to be doing what it is supposed to. But... on/off ???